How Cavities Develop
Teeth have a hard enamel surface. But poor dental oral hygiene can lead to a build-up of plaque which can lead to decay. If decay is left untreated the bacteria in the plaque will eventually eat their way into the central part of the tooth (pulp chamber). The nerve within the pulp may become infected and die. This may cause an abscess.
An abscess is an area of trapped infection at the root tip and will require removal with a Root Canal Treatment.